Hemihedry

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Hémiédrie (Fr). Hemiedrie (Ge). Emiedria (It). 半面像 (Ja). Hemiedría (Sp).


Definition

The point group of a crystal is called hemihedry if it is a subgroup of index 2 of the point group of its lattice.

See also

  • Chapter 3.2.1.1 of International Tables for Crystallography, Volume A, 6th edition